EP1667179B1 - Elektrische Schaltvorrichtung mit Wiederverwendung von Schaltgasen - Google Patents

Elektrische Schaltvorrichtung mit Wiederverwendung von Schaltgasen Download PDF

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Publication number
EP1667179B1
EP1667179B1 EP05354037A EP05354037A EP1667179B1 EP 1667179 B1 EP1667179 B1 EP 1667179B1 EP 05354037 A EP05354037 A EP 05354037A EP 05354037 A EP05354037 A EP 05354037A EP 1667179 B1 EP1667179 B1 EP 1667179B1
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EP
European Patent Office
Prior art keywords
fin
breaking device
arc
fins
electric
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Not-in-force
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EP05354037A
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English (en)
French (fr)
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EP1667179A3 (de
EP1667179A2 (de
Inventor
André Schneider Electric Industries SAS Cloitre
Christian Schneider Electric Ind. SAS Fievet
Hugues Schneider Electric Ind. SAS Filiputti
Benoît Schneider Electric Industries SAS Hage
Jean-Luc Schneider Electric Ind. SAS Ponthenier
Sophie Schneider Electric Industries SAS Servant
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP1667179A2 publication Critical patent/EP1667179A2/de
Publication of EP1667179A3 publication Critical patent/EP1667179A3/de
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Publication of EP1667179B1 publication Critical patent/EP1667179B1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346—Details concerning the arc formation chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H2009/348—Provisions for recirculation of arcing gasses to improve the arc extinguishing, e.g. move the arc quicker into the arcing chamber
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0235—Contacts and the arc extinguishing space inside individual separate cases, which are positioned inside the housing of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts

Definitions

  • the invention relates to an electrical cut-off device comprising a housing having a reference longitudinal geometric plane, a pair of separable electrical contacts disposed in an opening volume, an arc extinction chamber opening on the volume opening and being delimited by two parallel side walls and placed on either side of the geometric reference plane, a rear wall remote from the opening volume, a bottom wall and an upper wall.
  • the arc extinguishing chamber comprises a stack of at least two deionization fins separated from each other by an exchange space, each fin having a leading edge to be exposed to the arc. At least one exchange space is connected to at least one evacuation duct via at least one evacuation hole.
  • the arc voltage is raised as rapidly as possible until it becomes greater than the applied voltage. This causes the cancellation of the short circuit current.
  • the dielectric resistance of the air between the separated contacts then prevents a reboot or other arcing.
  • the electric arc must be cooled as quickly as possible while remaining away from the electrical contacts. This cooling is commonly done by placing the arc inside an arc extinguishing chamber comprising a stack of metal plates called deionization fins. In practice, the electric arc, which has just been born, is pushed into the chamber by electrodynamic forces induced by a magnetic field of the current flowing in the conductors.
  • the arc tends to move between the side walls of the arc extinguishing chamber, generally borrowing the recesses present in the fins. These recesses favor the migration of the arc towards the bottom of the chamber.
  • the stack of fins causes a cutting of the arc and facilitates its insertion into the arc extinguishing chamber 10.
  • the fins provide the arc a heat exchange surface throughout the cut. As the bow progresses in the room, it tends to expand to invade all available space. The fins contain this expansion by interacting with the periphery of the arc.
  • the arc voltage increases as the arc cools.
  • the pressure in the breaking volume increases sharply.
  • the birth of the arc concomitantly causes the birth of a large amount of metal vapor or gas, which may, if they are not evacuated, be responsible in particular for a connecting arc between the phases of the electrical device cutoff and create an explosion.
  • This internal gas recirculation is generally accompanied by an increase in the volume of the electrical cut-off device. Indeed, the gases are generally conducted in specific volumes located beyond the arc extinction chamber.
  • the channels used for the gas duct can, due to their geometry, induce pressure caps responsible for poor evacuation or slowing of said gases.
  • the arc extinguishing chamber has deionization vanes having optimized shapes.
  • some documents FR2839195 ) disclose recesses terminating in a chimney which tends to stabilize the arc in a region remote from the opening volume of the contacts.
  • the shape of the recess characterized by the presence of a corridor running from the birth zone of the arc to the chimney can cause a sending of hot gases and vapors towards the opening area of the contacts and thus causing a leak of the arc from the chamber to the contacts. This leak is accompanied by repetitive repetitions.
  • the invention therefore aims to overcome the disadvantages of the state of the art, so as to provide an electrical cut-off device comprising gas recycling means inside the electrical cut-off device.
  • Said at least one exhaust duct of the electrical breaking device according to the invention of arc extends from said at least one evacuation hole to an opening, along at least one side wall, said duct comprising, according to the z axis of the gas inlet at their outlet of said duct, a substantially constant or increasing section, said opening being at least equal to the larger section of said duct and being placed opposite the electrical contacts of the opening volume.
  • each exchange space of the extinguishing chamber comprises at least one evacuation hole connected to at least one evacuation duct.
  • the electrical cut-off device comprises at least two exhaust ducts, at least one duct extending along each side wall of the arc extinguishing chamber.
  • the exchange spaces of the extinguishing chamber comprise at least two evacuation holes, at least one hole being connected to each of the evacuation conduits extending along each wall.
  • the evacuation holes are placed in an area between the rear wall and the median axis of the fins.
  • the drain holes are placed in the side walls.
  • the evacuation holes are placed in the posterior wall.
  • the exhaust ducts have a substantially parallelepiped shape.
  • the free edge of attack of at least two of the fins delimits a recess opening of asymmetrical shape and forming two lateral branches, said recess being made so as to create, when said fins are stacked alternately, at least one chimney whose duct appears as substantially closed in a plane perpendicular xy to the longitudinal axis of said chimney.
  • the free leading edge of the fins is in contact at least twice with the longitudinal axis of said fin.
  • the free leading edge of the fins cuts at least twice the longitudinal axis of said fin
  • the free cutting edge of the recess defines a first flared front portion opening to the opening volume and a second longitudinal posterior portion extending towards the posterior wall, the first flared front portion is cut by the longitudinal axis. fins.
  • each fin is positioned next to another fin having been rotated 180 ° relative to its longitudinal axis.
  • the electrical cut-off device 30 comprises a casing 31 made of molded plastic material in which at least one fixed contact 32 associated with at least one moving contact 33 is arranged.
  • One or more fault detection devices act on an actuating mechanism 34 controlling the opening of the movable contact 33.
  • the housing 31 because of its shape, defines a reference longitudinal geometric plane xz.
  • the electric cut-off device comprises two U-shaped fixed contacts 32 respectively connected to an electrical connection terminal.
  • the movable contact 33 which can move in translation under the action of the actuating device 34, makes it possible to connect the two fixed contacts 32 electrically.
  • the movable contact 33 has two contact zones 36 each capable of collaborating respectively with a fixed contact 32 Two opening volumes 35 corresponding to the space in which a fixed contact 32 and a contact zone 36 associated with the moving contact 33 are thus defined.
  • each opening volume 35 is associated with an arc extinguishing chamber 10.
  • the arc extinguishing chamber 10 opening on the opening volume 35 is delimited by two parallel side walls 11 and placed on either side of the longitudinal geometric reference plane xz, a rear wall 6 remote from the opening volume 35, a bottom wall 7 and an upper wall 8.
  • the arc extinguishing chamber 10 comprises a stack of at least two deionization fins 1 planar and perpendicular to the reference longitudinal geometric plane xz.
  • Said fins are of substantially rectangular shape and have a longitudinal axis 12 and a median axis 13.
  • Said fins comprise two main parts: a first front portion 13a facing the opening volume 35 and extending from the front face of the extinguishing chamber 10 at the median axis 13, and a second posterior portion 13b extending from the median axis 13 to the posterior wall 6.
  • Each fin 1 has a free leading edge 5 intended to be exposed to the arc.
  • the free leading edge 5 preferably forms a recess 9 opening and extending along the longitudinal axis 12, from the anterior face of the extinguishing chamber 10 to the posterior wall 6.
  • This recess 9 delimits two lateral branches 1 a, 1 b.
  • the fins are made of conductive material based on steel.
  • the deionization fins 1 stacked on top of each other are separated each other by a space of exchange 2.
  • the thickness of each exchange space slightly greater than the thickness of the fins.
  • At least one exchange space 2 is connected to at least one evacuation duct 3 via at least one evacuation hole 4.
  • Said at least one evacuation duct 3 is intended on the one hand for the evacuation of gases from the extinguishing chamber 10 and on the other hand to the injection of said gases, via an opening 18, at the level of the contacts 32, 33 of the opening volume 35.
  • said at least one exhaust duct 3 extends from at least one evacuation hole 4 towards the opening 18, along at least one side wall 11. Said opening 18 is placed opposite electrical contacts 32, 33 of the opening volume 35
  • the gases then take a flow duct composed of at least one evacuation hole 4, at least one evacuation duct 3 and at least one opening 18.
  • Said evacuation ducts 3 comprise, over any their length and along the x-axis, a constant or increasing section A.
  • said evacuation ducts 3 also preferably comprise a constant section along the y and z axes.
  • the section of said ducts is substantially constant.
  • the section of said ducts may be increasing.
  • the opening 18 is at least equal to the largest section A of said duct.
  • the section of a flow path taken by the gases must at least remain constant or increase.
  • This geometrical feature promotes the flow of gases from the exchange spaces 2 and thus limits the creation of pressure caps that can form along the flow conduit.
  • a decrease in the section of the flow conduit, particularly at the outlet duct 3 or the opening 18, could cause the creation of pressure plugs.
  • These pressure caps could cause braking in the progression of gases and in the progression of the electric arc.
  • each exchange space 2 is connected to at least one evacuation pipe 3 via at least one evacuation hole 4.
  • the shape and size of the discharge holes 4 are such that the gas flow does not cause the passage of the arc through these holes.
  • the drain holes are made independently and do not communicate with each other.
  • At least two exhaust ducts 3 are present in such a way that at least one duct 3 extends along each side wall 11 of the arc extinguishing chamber 10.
  • each discharge duct placed next to a side wall 11 extends from the discharge holes 4 to an opening 18, from the bottom wall 8 to the top wall 7 and along the side wall 11.
  • each exchange space 2 comprises at least one evacuation hole 4 connected to an evacuation duct 3
  • the drainage holes 4, placed in the side walls 11, are positioned in an area between the rear wall 6 and the central axis 13 of the fins 1.
  • the ducts are substantially parallelepipedal in shape.
  • the arc extinguishing chamber 10 may comprise deionization fins of known shapes and in particular having V-shaped recesses.
  • the recess 9 of at least two fins is of asymmetrical shape and comprises two portions. It comprises a first flared front portion 9a facing the contacts 32, 33 placed in the opening volume 35 and a second narrower rear longitudinal portion 9b.
  • the leading edge 5 traversing the flat surface of said at least two fins is at least twice in contact at points a, b with the longitudinal axis 12 of the fins.
  • the leading edge 5 cuts three times at points a, b, c the longitudinal axis 12 of said at least two fins.
  • the recess 9 is made so that when two fins are stacked alternately, there are, along the z axis, at least two alignment zones a and b between a lateral branch 1 a of a first fin 1 and at least one lateral branch 1a of a second fin 1 placed in an alternating position.
  • One fin is in an alternating position with respect to another when it has been rotated 180 ° about its longitudinal axis 12.
  • the first alignment zone a is located in the front part of the fin 1.
  • the two lateral branches 1a, 1b are substantially placed on either side of said longitudinal axis 12 and the first flared front portion 9a is cut by the longitudinal axis 12.
  • all the fins placed in the arc extinguishing chamber 10 comprise the same recess 9.
  • the stack of all the fins 1 of the arc extinguishing chamber 10 is made in such a way that at least two of the fins are stacked alternately so that the shapes of their recess 9 do not coincide.
  • all the fins 1 are stacked alternately, so that each fin 1 is positioned next to another fin having been rotated 180 ° relative to its longitudinal axis 12.
  • the chimney 15 extends over the entire height of the chamber, from the bottom wall 8 to the top wall 7.
  • the axis 16 of the chimney 15 will be more or less close to the rear wall 6 of the arc extinguishing chamber 10.
  • the chimney 15 is preferably positioned at the median axis 13 of the fin 1 or beyond said axis to the posterior wall 6.
  • the apparatus operates in the following manner.
  • the electromagnetic field induced by the current flowing in the conductors and in particular in the fixed contact 32 generates in the moving contact 33 electrodynamic forces that push the movable contact in separation position, this movement being subsequently confirmed by the opening of the actuating mechanism via the mechanism 34.
  • an electric arc arises between said contacts.
  • This arc is pushed into the arc extinction chamber 10 by the electrodynamic forces.
  • the arc remains halfway between the side walls 11, since it tends to borrow the recesses 9 open between the fins.
  • the fins 1 offer the arc a heat exchange surface during the entire cut, especially in their part near the edges 5. During its progression in the arc extinguishing chamber 10 or when installed in the chimney 15, the arch tends to expand to invade all the available space. The fins 1 contain this expansion by interacting with the periphery of the arc. When the arc is in the chimney 15, the heat exchange is distributed in a uniform way around the arc and thus optimizes its cooling and accelerates its extinction. The arc voltage increases as the arc cools which eventually allows the extinction of the arc when the current passes through zero.
  • the recesses 9 promote the migration of the arc towards the bottom of the arc extinguishing chamber 10, and the chimney 15 stabilizes the arc in this region.
  • This stack 15, remote from the opening volume allows the arc to stabilize and not re-slamming repeatedly between the contacts. It is therefore the conjunction of the shape of the recess and the respective position of the fins relative to each other which allows to quickly and sustainably move the arc contacts.
  • the gases emitted at the periphery of the arc and present in the exchange spaces 2 are injected into the opening volume 35 via the flow conduits composed of the evacuation holes 4, the evacuation ducts 3 and openings 18.
  • the homogeneous and even distribution of the gases evacuated by the flow ducts reduces the risk of pressure plugs responsible for slowing the progression of the gases and the progression of the arc. Indeed, a local increase in pressure or the presence of cold gas, in front of the arc, may cause a slowdown in its movement.
  • the flow of gases in the flow conduits towards the electrical contacts 32, 33 of the opening volume 35 allows decompression of said gases and a faster cooling thereof.
  • the injection of the cooled gases at the contacts 32, 33 present in the opening volume 35 makes it possible to increase the dielectric strength in this case. space and avoid inadvertent re-breakdown of the electric arc.
  • this injection at the level of the contacts makes it possible to subject the plasma present in the opening volume 35 and the arc extinguishing chamber 10 to a rear flow of cold and weakly ionized gases. This causes a cooling of the rear area of the arc but also the sending of the hot gases in front of the arc. Because of its cooling by the rear, the arc tending to develop in the presence of ionized hot gases associated with metal vapors, moves towards the rear face 6 of the extinguishing chamber 10 and thus moves away from the contact opening area.
  • the leading edge 5 traversing the flat surface of the fins 1 and forming the recess 9 of asymmetrical shape, cut five times at points a, b, c, d, e the longitudinal axis 12 of said fins. Because of the asymmetrical shape of the recesses 9 of each fin 1 and because of the alternating stack of said fins, are formed two chimneys 15 whose ducts 16 appear respectively substantially closed in a plane perpendicular xy to the longitudinal axis 16 said chimneys 15.
  • the leading edge 5 traversing the flat surface of the fin and forming the recess 9 of asymmetrical shape cuts twice the longitudinal axis 12 of said fin.
  • the first flared longitudinal portion 9a is positioned beyond the longitudinal axis 12 of the fins 1.
  • each exchange space 2 comprises at least one evacuation hole 4 placed in the rear wall 6 and connected to a discharge duct 3.
  • each exchange space 2 comprises two evacuation holes. 4; each of the holes is respectively connected to a discharge duct 3.
  • each hole 4 is connected autonomously to an opening 18 via its own evacuation duct 3. indeed, each evacuation duct 3 remains independent of the other evacuation ducts.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Disintegrating Or Milling (AREA)
  • Patch Boards (AREA)

Claims (15)

  1. Elektrische Lichtbogen-Abschalteinrichtung mit
    • einem Gehäuse (31), das in der Längsachse eine geometrische Bezugsebene (xz) aufweist,
    • zwei, in einer Trennzone (35) angeordneten, trennbaren elektrischen Kontakten (32, 33),
    • einer zur Trennzone (35) hin geöffneten Lichtbogenlöschkammer (10), die durch zwei, beidseitig der geometrischen Bezugsebene (xz) parallel zueinander verlaufende Seitenwände (11), eine von der Trennzone (35) entfernte Rückwand (6), eine untere Wand (7) sowie eine obere Wand (8) begrenzt wird,
    • einer Anordnung aus mindestens zwei in der genannten Löschkammer angeordneten und durch eine Wärmeaustauschzone (2) voneinander getrennten Entionisierungsblechen (1), wobei an jedem dieser Bleche eine freiliegende Angriffskante (5) ausgebildet ist, die dazu dient, dem Lichtbogen ausgesetzt zu werden,
    • und mindestens einem Ableitkanal (3), der über mindestens eine Ableitöffnung (4) mit mindestens einer Wärmeaustauschzone (2) verbunden ist, wobei der genannte mindestens einfach vorhandene Ableitkanal (3) von der genannten mindestens einfach vorhandenen Ableitöffnung (4) entlang mindestens einer Seitenwand (11) in Richtung einer Austrittsöffnung (18) verläuft,
    dadurch gekennzeichnet, dass der genannte Kanal (3) in der Achse (x) vom Eintritt der Gase bis zu ihrem Austritt aus dem genannten Kanal einen annähernd konstanten oder einen zunehmenden Querschnitt (A) aufweist, wobei die genannte Austrittsöffnung (18) mindestens genauso so groß ist wie der größte Querschnitt (A) des genannten Kanals (3) und gegenüber den elektrischen Kontakten (32, 33) in der Trennzone (35) angeordnet ist.
  2. Elektrische Abschalteinrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jede Wärmeaustauschzone (2) der Lichtbogenlöschkammer (10) mindestens eine Ableitöffnung (4) aufweist, die mit mindestens einem Ableitkanal (3) verbunden ist.
  3. Elektrische Abschalteinrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sie mindestens zwei Ableitkanäle (3) umfasst, wobei mindestens ein Ableitkanal (3) entlang jeder Seitenwand (11) der Lichtbogenlöschkammer (10) verläuft.
  4. Elektrische Lichtbogen-Abschalteinrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Wärmeaustauschzonen (2) der Lichtbogenlöschkammer (10) mindestens zwei Ableitöffnungen (4) umfassen, wobei mindestens eine Ableitöffnung mit jedem der Ableitkanäle (3) verbunden ist, die entlang der Seitenwände (11) verlaufen.
  5. Elektrische Lichtbbgen-Abschalteinrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ableitöffnungen (4) in einem Bereich zwischen der Rückwand (6) und der Mittelachse (13) der Bleche (1) angeordnet sind.
  6. Elektrische Lichtbogen-Abschalteinrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Ableitöffnungen (4) in den Seitenwänden (11) ausgebildet sind.
  7. Elektrische Lichtbogen-Abschalteinrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Ableitöffnungen (4) in der Rückwand (6) ausgebildet sind.
  8. Elektrische Lichtbogen-Abschalteinrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ableitkanäle (3) annähernd quaderförmig ausgebildet sind.
  9. Elektrische Abschalteinrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die freiliegende Angriffskante (5) von mindestens zwei Blechen (1) eine asymmetrische, nach vorn geöffnete Ausnehmung (9) begrenzt, die zwei Seitenschenkel (1a, 1b) definiert, welche Ausnehmung so ausgebildet ist, dass bei abwechselnd seitenverkehrter Übereinanderschichtung der genannten Bleche (1) mindestens ein Kanal (15) gebildet wird, der in einer rechtwinklig zur Längsachse (16) des genannten Kanals (15) liegenden Ebene (xy) einen annähernd geschlossenen Verlauf aufweist.
  10. Elektrische Abschalteinrichtung nach Anspruch 9, dadurch gekennzeichnet, dass sie in der Achse (z) mindestens zwei Fluchtungsabschnitte zwischen einem Seitenschenkel (1a) eines ersten Blechs (1) und mindestens einem Seitenschenkel (1a) eines zweiten Blechs (1) aufweist, welches in Bezug zum genannten ersten Blech (1) um 180 ° um seine Längsachse (12) gedreht ist.
  11. Elektrische Abschalteinrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass sie in der Achse (z) mindestens einen Überlappungsbereich zwischen mindestens einem Seitenschenkel (1 a) eines ersten Blechs (1) und mindestens einem Seitenschenkel (1a) eines zweiten Blechs (1) aufweist, welches in Bezug zum genannten ersten Blech (1) um 180° um seine Längsachse (12) gedreht ist.
  12. Elektrische Abschalteinrichtung nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die freiliegende Angriffskante (5) der Bleche (1) an mindestens zwei Stellen die Längsachse (12) des genannten Blechs berührt.
  13. Elektrische Abschalteinrichtung nach Anspruch 11, dadurch gekennzeichnet, dass die freiliegende Angriffskante (5) der Bleche (1) an mindestens zwei Stellen die Längsachse (12) des genannten Blechs schneidet.
  14. Elektrische Abschalteinrichtung nach Anspruch 12, dadurch gekennzeichnet, dass die freiliegende Angriffskante (5) der Ausnehmung (9) einen ersten, sich konisch zur Trennzone (35) hin öffnenden, vorderen Abschnitt (9a) sowie einen zweiten, länglich ausgebildeten hinteren Abschnitt (9b) begrenzt, welcher sich in Richtung der Rückwand (6) erstreckt, wobei der erste sich konisch öffnende vordere Abschnitt (9a) von der Längsachse (12) der Bleche geschnitten wird.
  15. Elektrische Abschalteinrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedes Blech (1) neben einem weiteren Blech (1) angeordnet ist, welches um 180° um seine Längsachse (12) gedreht ist.
EP05354037A 2004-12-06 2005-10-20 Elektrische Schaltvorrichtung mit Wiederverwendung von Schaltgasen Not-in-force EP1667179B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0412974A FR2879016B1 (fr) 2004-12-06 2004-12-06 Dispositif electrique de coupure avec recyclage des gaz de coupure

Publications (3)

Publication Number Publication Date
EP1667179A2 EP1667179A2 (de) 2006-06-07
EP1667179A3 EP1667179A3 (de) 2007-08-08
EP1667179B1 true EP1667179B1 (de) 2008-11-26

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EP (1) EP1667179B1 (de)
CN (1) CN100573775C (de)
AT (1) ATE415691T1 (de)
DE (1) DE602005011234D1 (de)
ES (1) ES2315824T3 (de)
FR (1) FR2879016B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2923649B1 (fr) 2007-11-13 2009-12-11 Schneider Electric Ind Sas Chambre de coupure et disjoncteur equipe d'une telle chambre de coupure.
KR101802537B1 (ko) 2009-09-18 2017-11-28 슈나이더 일렉트릭 인더스트리스 에스에이에스 접점 브릿지를 포함하는 적어도 하나의 단극 상을 갖는 인터럽터 디바이스 및 이 디바이스를 포함하는 회로 차단기
CN102013365B (zh) * 2011-01-07 2013-05-01 上海诺雅克电气有限公司 断路器的灭弧装置
EP2650894B1 (de) 2012-04-12 2018-06-06 ABB Oy Elektrische Stromschaltungsvorrichtung
EP2650893A1 (de) * 2012-04-12 2013-10-16 ABB Oy Elektrische Stromschaltungsvorrichtung
AT13887U1 (de) * 2012-08-07 2014-11-15 K & N Schalterentwicklungsgesellschaft M B H Stromschalter mit Löschabschnitt zur Löschung eines Lichtbogens
US9622374B2 (en) 2014-08-08 2017-04-11 General Electric Company Electrical equipment and a method of manufacturing
US9865418B2 (en) * 2015-12-08 2018-01-09 Siemens Industry, Inc. Circuit breakers, arc expansion chambers, and operating methods
FR3098008A1 (fr) * 2019-06-26 2021-01-01 Schneider Electric Industries Sas Appareil électrique de commutation comportant un dispositif de filtrage
CN113192778B (zh) * 2021-05-12 2022-05-27 上海西门子高压开关有限公司 用于灭弧室的热气流排气装置、灭弧室以及气体绝缘开关

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DE4333278A1 (de) * 1993-09-24 1995-03-30 Siemens Ag Leistungsschalter mit einer Lichtbogenlöscheinrichtung

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DE602005011234D1 (de) 2009-01-08
CN100573775C (zh) 2009-12-23
EP1667179A3 (de) 2007-08-08
CN1801423A (zh) 2006-07-12
ATE415691T1 (de) 2008-12-15
FR2879016B1 (fr) 2007-02-09
ES2315824T3 (es) 2009-04-01
FR2879016A1 (fr) 2006-06-09
EP1667179A2 (de) 2006-06-07

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